公开(公告)号：KR100661629B1

公开(公告)日：2006-12-27

申请号：KR1020050123052

申请日：2005-12-14

Applicant: 강원대학교산학협력단

Inventor： 은희창 ,  함희정 ,  김곤 ,  이은택

IPC: C04B14/02 ,  C04B28/02 ,  C04B22/06

Abstract: Provided is a high-strength and high-performance permeable concrete using low-grade iron ore, which recycles waste resources, saves natural aggregates, preserves environment, and has improved strength and resistance against freezing and thawing. The high-strength and high-performance permeable concrete using low-grade iron ore is obtained by mixing low-grade iron ore of 1470-1680kgf/m^3 having a particle size of 5-13mm, water of 150-180kgf/m^3, cement of 540-650kgf/m^3, a high-performance water-reducing agent of 0.65-2.7kgf/m^3, and admixtures of 60-72kgf/m^3 and has a slump less than 2.5cm, a strength of 210kgf/cm^2 or more, and a permeability coefficient of 0.1cm/sec or more.

Abstract translation: 本发明提供一种使用低品位铁矿石的高强度高性能透水混凝土，其回收废料资源，节省天然骨料，保存环境，并且具有提高的强度和抗冻融性。 采用低品位铁矿石的高强高性能透水混凝土，是将1470-1680kgf /立方公尺的低品位铁矿石粒度5-13mm，水150-180kgf / m ^ 3，水泥540-650kgf /立方公尺，高性能减水剂0.65-2.7kgf /立方公尺，外加剂60-72kgf /立方公尺，坍落度小于2.5cm， 强度210kgf /平方公分以上，渗透系数0.1cm / sec以上。

公开(公告)号：KR1020110002120A

公开(公告)日：2011-01-07

申请号：KR1020090059542

申请日：2009-07-01

Applicant: 강원대학교산학협력단

Inventor： 김곤 ,  김원우

IPC: F21V9/08 ,  F21V9/16 ,  F21V29/70 ,  F21S13/10 ,  F21W131/103 ,  F21W111/02 ,  F21Y101/02

CPC classification number: F21V9/08 ,  F21S13/10 ,  F21V9/30 ,  F21V29/70 ,  F21W2111/02 ,  F21W2131/103 ,  F21Y2101/00 ,  Y02B20/72

Abstract: PURPOSE: An LED streetlight lighting unit is provided to suppress the singing of cicadas by blocking light with 500 nm or less which the cicadas recognize. CONSTITUTION: A lamp body has an LED source(20) which emits white light with a wavelength between 390 and 780 nm. The LED source includes a PCB(21) attached to the surface of a heat radiation plate(16) and a white LED element(22). A cover member(40) includes a transparent window(42) which transmits light emitted from the LED source. An optical filter(30) blocks the wavelength of 500 nm or less in the white light from the LED source. The optical filter is combined with the heat radiation plate.

Abstract translation: 目的：提供LED路灯照明单元，通过阻止蝉识别的500nm以下的光抑制蝉鸣。 构成：灯体具有发射波长在390和780nm之间的白光的LED源（20）。 LED源包括附接到散热板（16）的表面的PCB（21）和白色LED元件（22）。 盖构件（40）包括透射从所述LED源发出的光的透明窗（42）。 滤光器（30）在来自LED源的白光中阻挡500nm以下的波长。 光学滤波器与散热板组合。